864462540 has 96 divisors (see below), whose sum is σ = 2529838080. Its totient is φ = 220340736.

The previous prime is 864462503. The next prime is 864462619. The reversal of 864462540 is 45264468.

864462540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117696 + ... + 124824.

It is an arithmetic number, because the mean of its divisors is an integer number (26352480).

Almost surely, 2^864462540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864462540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264919040).

864462540 is an abundant number, since it is smaller than the sum of its proper divisors (1665375540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864462540 is a wasteful number, since it uses less digits than its factorization.

864462540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231 (or 7229 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 864462540 is about 29401.7438258345. The cubic root of 864462540 is about 952.6105630091.

The spelling of 864462540 in words is "eight hundred sixty-four million, four hundred sixty-two thousand, five hundred forty".